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GB/T 28542-2012 English PDF (GBT28542-2012)

GB/T 28542-2012 English PDF (GBT28542-2012)

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GB/T 28542-2012: Road vehicles jump-start cables

This Standard specifies the terms and definitions, requirements, test methods, inspection rules of road vehicles jump-start cables. This Standard is applicable to the start cable with nominal voltage 12V or 24V, the start current no greater than 750A.
GB/T 28542-2012
GB
NATIONAL STANDARD OF THE
PEOPLE REPUBLIC OF CHINA
ICS 43.040.10
T 37
Road Vehicles Jump-Start Cables
ISSUED ON. JUNE 29, 2012
IMPLEMENTED ON. NOVEMBER 1, 2012
Issued by. General Administration of Quality Supervision, Inspection and Quarantine;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative References ... 4
3 Terms and Definitions ... 4
4 Requirements ... 5
5 Test Method ... 8
6 Inspection Rules ... 15
7 Package, Transportation and Storage ... 17
Appendix A (Normative) Warning Label and Usage Instructions ... 19
Foreword
This Standard referred to the German Industry Standard DIN 72553.1994 Battery Jumper Cable for Road Vehicles with Combustion Engine, Dimension, Requirements, Test, and Society of Automotive Engineers Standard SAE J 1494.2001 Battery Charging Cable.
This Standard was proposed by the Ministry of Industry and Information Technology. This Standard shall be under the jurisdiction of National Technical Committee for Standardization of Automotive (SAC/TC 114).
Drafting organizations of this Standard. Jiande Wanjia Electric Appliance Cable Co., Ltd., Hangzhou Entry-Exit Inspection and Quarantine Bureau, Zhejiang Academy of Science and Technology for Inspection and Quarantine, Wenzhou Entry-Exit Inspection and Quarantine Bureau, China Automotive Technology and Research Center, Changsha Auto Electric Research Institute, Jiande City Quality and Technical Supervision Bureau, Jiande Hualong Electric Appliance Tool Co., Ltd., Jiande Low-Voltage Contractors Association.
Chief drafting staffs of this Standard. Yan Liming, Gao Xikang, Tang Renxing, Zheng Gaoke, Zheng Zhen, Lu Zhengqiu, Pan Peng, Cheng Jianwen, Qi Fanghao, and Liu Qiping.
Road Vehicles Jump-Start Cables
1 Scope
This Standard specifies the terms and definitions, requirements, test methods, inspection rules of road vehicles jump-start cables (hereinafter referred to as start cable).
This Standard is applicable to the start cable with nominal voltage 12V or 24V, the start current no greater than 750A.
2 Normative References
The following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) are applicable to this document.
GB/T 191 Packaging ?€? Pictorial Marking for Handling of Goods
GB/T 1220-2007 Stainless Steel Bars
GB/T 3953 Round Copper Wire for Electrical Purposes
GB/T 4909.2-2009 Test Methods for Bare Wires ?€? Part 2. Measurement of
Dimensions
GB/T 25085-2010 Road Vehicles ?€? 60V and 600V Single-Core Cables
SJ/T 11223 Copper-Clad Aluminum Wire
3 Terms and Definitions
The following terms and definitions are applicable to this document.
3.1 Rated current
The ability of start cable to transmit current under certain conditions. 3.2 Voltage drop
10mm 20mm 30mm
80 30??6 50??10 70??10
100, 150, 200, 220 35??7 55??11 75??15
350 40??8 60??12 80??16
480, 750 50??10 75??15 95??19
4.4.2 The insulation parts of battery clip shall, at low temperature -25??C (common temperature type) or -40??C (extra-low temperature type) state, be free from surface and structural breakage when falling off from 1.5m high place.
4.4.3 The metal parts of battery clip shall withstand the spray erosion at normal use or storage environment, and the surfaces of them shall be free from rust. 4.5 The bonding strength between cable and battery clip
The bonding place between cable and battery clip shall be free from stripping or damage when being exerted the following tension.
a) For the start cable with rated current no greater than 150A, exert 245N??5N tension;
b) For the start cable with rated current greater than 150A, exert 445N??20N tension.
4.6 Warning label
4.6.1 The warning label shall contain the warning language specified in A.1 of Appendix A.
4.6.2 The picture and text of warning label shall be legible and durable. 4.6.3 After withstanding 22N tension, the warning label shall not be damaged; and its picture and text shall be legible.
4.7 Voltage-drop and temperature-rise of start cable
At 23??C??5??C ambient temperature, the start cable is passed by rated current for 15s, the voltage-drop generated on the start cable shall conform to the provisions of Table 1; during and after the power-on, the temperature-rise on the back of battery clip handle and folder shall not exceed 45K, it shall not damage the mechanical structure and electrical structure of start cable components.
5 Test Method
5.1 Test conditions and specimen requirements
Unless otherwise is specified, all tests shall be performed at the ambient temperature of 23??C??5??C.
Unless otherwise is specified, all specimens shall be taken from the new or non-tested damaged cables.
Unless otherwise is specified, before test, the specimen shall be placed at the ambient temperature of 23??C??5??C, and stand for no less than 1h.
5.2 Start cable polarity test
Check the start cable polarity by visual observation or other suitable methods. 5.3 Cable test
5.3.1 The conductor cross-sectional area test can refer to the provisions of 5.4 in GB/T 4909.2-2009.
5.3.2 The cable outer diameter and cable insulation layer thickness test can refer to the provisions of 5.1.1-5.1.3 and 5.2.1-5.2.3 in GB/T 25085-2010.
5.3.3 The high-temperature pressure test of cable insulation layer can refer to the provisions of 7.1 in GB/T 25085-2010, thereof the oven temperature shall be set at 70??C??2??C.
5.3.4 The low-temperature winding test of cable insulation layer can refer to the provisions of 8.1 in GB/T 25085-2010, thereof freezer temperature shall be set at - 25??C??2??C (for common temperature type) or -40??C??2??C (for extra-low temperature type).
5.3.5 The high-temperature-resisting short-term aging test of cable insulation layer can refer to the provisions of 10.2 in GB/T 25085-2010, thereof the oven temperature shall be set at 110??C??2??C, the aging test time is set for 168h.
5.3.6 The gasoline, diesel, and machine oil resisting test of cable insulation layer can refer to the provisions of 11.2 in GB/T 25085-2010.
5.3.7 The self-sustaining combustion test of cable insulation layer can refer to the provisions of Chapter 12 in GB/T 25085-2010.
5.4 Battery clip test
5.4.1 Battery clip extension force and holding force test
Take the battery clip as the specimen, do the following tests in Item a)~d) as shown in Figure 2.
Figure 5 Start Cable Voltage-Drop and Temperature-Rise Test Schematic
Diagram
5.7.2 The specimen shall be start cable that has undertaken the bonding strength test specified in 5.5.
5.7.3 Do the test as per the following procedures.
a) Take one cable from the specimen, clamp the two battery clips of such cable onto the central position of the stainless-steel electrode as shown in Figure 5; bond the thermocouple (as shown four temperature-rise testing points in A~D figure) on the handle back center point and clamp jaw back center point of two battery clips, so that measure the temperature-rise of the specimen. When the insulation layer (see Figure 1) of the battery clip adopts non-permanent fixed way, after removing the insulation layer, bond the thermocouple to the battery clip, such insulation layer shall not be taken during the test.
b) Set the energization time to be 15s. Turn on the test power supply, the test current shall be arisen to the rated current within 3s, record the voltage-drop and temperature-rise of the specimen.
c) During the energizing period, when voltage-drop value exceeds the limit value specified in Table 1, and any of the temperature-rise value on four temperature- rise testing points exceed 45K, immediately cut off the power, stop the test. Otherwise, continue the d) test.
d) After energizing for 15s, disconnect the test power supply. Then continue to monitor the temperature-rise value within 120s. When any of the temperature- rise value on four temperature-rise testing points exceed 45K, stop the test. Otherwise, after the above test, cool off the specimen at room temperature for 1h, then continue the e) test.
e) Do the bonding strength test against the specimen as per the method specified in 5.5.
f) Take the other cable from the same specimen, repeat the above a) ~ e) test. 6 Inspection Rules
6.1 Inspection classification
The inspection can be divided into type inspection and exit-factory inspection. 6.2 Type Inspection
6.2.1 The type inspection shall be carried out in any one of the following cases. specified by the manufacturer in the product technical document, or negotiated by the purchaser or supplier. The exit-factory inspection items shall at least contain all items listed in the column of ?€?exit-factory inspection?€? in Table 4.
6.3.2 The start cable can leave the factory only when being inspected qualified, and accompanied by the document or mark that proves the product qualification. 7 Package, Transportation and Storage
7.1 Package
7.1.1 Each set of sta...

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